# STCs that may be installed: U/A Canada PT6A-21

A list on [U/A Canada PT6A-21](https://openairdocs.org/engine/u-a-canada-pt6a-21.md).

In force first, then newest. The registry doesn’t record which STCs an aircraft has.

- [STC SE000EN](https://openairdocs.org/stc/SE000EN.md): Engines will be maintained IAW 'Maintenance or Reliable Engines(MORE) Program,' Rev 4, dated 8/16/95. · MORE Company Inc
- [STC SE10947SC](https://openairdocs.org/stc/SE10947SC.md): The conversion of the Pratt & Whitney Canada, Model PT6A-21 to a PT6A-28 turboprop engine · Prime Turbines
- [STC SE02837NY](https://openairdocs.org/stc/SE02837NY.md): The conversion of the Pratt & Whitney Canada PT6A-21 engine to operate as a PT6A-28 engine to be done. · Rocky Mountain Aircraft
- [STC SE02290NY](https://openairdocs.org/stc/SE02290NY.md): Conversion of a Pratt & Whitney Canada PT6A-21 engine to operate as a PT6A-27 or -28 engine · Vector Aerospace Engine Services Atlantic Inc.
- [STC SE00014EN](https://openairdocs.org/stc/SE00014EN.md): Installation of the Pratt & Whitney Engine Services, Inc. CrossCheck Engine Monitor Kit P/N HUMS-K-071-1, Rev. A on the specified PT6A engine models and kit P/N HUMS-K-071-2 on the specified A250 engine models. · Pratt & Whitney Engine Services Inc.
- [STC SE00020EN](https://openairdocs.org/stc/SE00020EN.md): Installation of the Pratt & Whitney Engine Services, Inc. TrendCheck/ TrendCheck Plus Engine Monitor Kit P/N TREND-K-010-1 · Pratt & Whitney Engine Services Inc.
- [STC SE2960SO](https://openairdocs.org/stc/SE2960SO.md): Installation of an oil filler cap safety adapter. · Jet Avion Corporation
- [STC SE615GL](https://openairdocs.org/stc/SE615GL.md): Incorporation of a fuel flow transducer. · Shadin Avionics
- [STC SE01805NY](https://openairdocs.org/stc/SE01805NY.md): Installation of Fuel Nozzle Adapters using studs and nuts. · Atlantic Turbines International Inc.
- [STC SE09257SC](https://openairdocs.org/stc/SE09257SC.md): Convert P&W Engine Models PT6A-15AG, -27, and -28, into PT6A-34 configuration. · Covington Aircraft Engines, Inc.
- [STC SE659NE](https://openairdocs.org/stc/SE659NE.md): Installation of oil tank filler neck check valve, P/N TSA-76A. · Aviation Components Support
- [STC SE1122EA](https://openairdocs.org/stc/SE1122EA.md): Repair of combustion chamber small exit duct, P/N 3012060. · Airwork Corporation
- [STC SE1269EA](https://openairdocs.org/stc/SE1269EA.md): Stripping and recoating of compressor turbine blades, P/N 3023401, with Walbar Metals, Inc. · Airwork Corporation
- [STC SE386NE](https://openairdocs.org/stc/SE386NE.md): Installation of Turbo Products PMA parts. · Audco Corporation
- [STC SE5601SW](https://openairdocs.org/stc/SE5601SW.md): Replacement splined end and oil mist lubrication on accessory drive gearshaft. · Aviall of Texas, Inc
- [STC SE1165EA](https://openairdocs.org/stc/SE1165EA.md): Assembly and installation of AW10262 wet spline starter gear seal. · Airwork Corporation
- [STC SE4607SW](https://openairdocs.org/stc/SE4607SW.md): Revise the starter-generator drive spline to provide lubrication with engine oil. · Aviall of Texas, Inc
- [STC SE4570SW](https://openairdocs.org/stc/SE4570SW.md): Revise accessory drive spline, P/N 3008181. · Aviall of Texas, Inc

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT s.stc_number, s.description, s.holder, s.status, s.status_date, m.matched_model
FROM (
  SELECT stc_number, min(matched_model) AS matched_model
  FROM 'https://openairdocs.org/data/latest/faa_engine_model_stc.parquet'
  WHERE engine_model_code IN ('61572')
  GROUP BY stc_number
) m JOIN 'https://openairdocs.org/data/latest/faa_stc.parquet' s USING (stc_number)
ORDER BY s.status = 'Current' DESC, s.status_date DESC, s.stc_number
```

This list as a web page: https://openairdocs.org/engine/u-a-canada-pt6a-21/stcs

---
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